Mixing device



GIRD MIXING DEVICE June 1931.

4 sheet ms J 1 Filed Nov. 26. 1929 June 2, 1931 Gm 1,807,736

MIXING DEVICE Filed. Nov. 26, 1929 4 Sheets-Sheet 2 (1:19. Girol v n/z WWW June 2, 1931. D 1,807,736

MIXING DEVICE Filed Nov. 26, 1929 4 Sheets-Sheet 3 m 32 an june 2, 1931. J. GIRD 1,807,736

MIXING DEVICE Filed Nov. 26, 1929 4 Sheets-Sheet 4 Patented June 2, 1931 PATENT OFFICE JOHN A. GIRD,- OF CEDAR LAKE, LI'I'CHFIELD, YORK MIXING DEVICE Application filed November26, 1929. Serial No. 409,985.

The present invention is directed to improvements in mixing devices primarily designed for mixing fungicide stock with water for use in spraying apparatus.

The primary object of the invention is to provide a device of this character so constructed that the stock to be mixed in proper proportions with clear water may be conducted in measured quantities from the stock containers to a tank to be mixed with the water.

Another object of this invention is to provide a device of the character stated constructed in such manner that the stock from the containers will flow into the mixing tank in predetermined quantities, governed by the tilting of the containers.

Another object of the invention is to provide a device of this kind wherein stock can be easily and quickly mixed with the water, the construction being such that considerable time and labor is saved in obtaining the proper mixture for use in a spraying device.

Another object of the invention is to provide a device of this character which is simple in construction, efficient in operation and one which can be manufactured at a minimum cost. 7

In the drawings:

Figure 2 is a top plan view thereof.

Figure 3 is a front end view.

Figure 4 is a detail perspective view of the manner in which one of the tripping rods is supported.

Figure 5 is a detail sectional view through one of the valves.

Figure 6 is a fragmentary sectional view through the screw shaft operating mechanism. I r V Figure? is a front view of the indicator plate. V

Figure 8 is a vertical sectional view through the same.

Figure 9 is a detail perspective view of the indicia bearing head. r

Referring to the drawings, the numeral 1 designates the runners which are maintained in spaced parallel relation by cross "bars 2, there being a platform 3 mounted upon the Figure 1 is a side elevation of the device.

forward ends of the runners and upon which is supported a transversely disposed cylindr cal mixing tank 4, the tank being maintamed in fixed position upon the platform by metallic straps 5.

Each cross bar has supported thereon a bracket 6 which is formed from suitable gauge strap iron and is of inverted V-shaped formation. The upper end of each bracket has mounted thereon'a bearing 7 in which is j ournaled the ends of the shaft 8. Spaced saddles 99 are fixed to the shaft 8 and are disposed transversely with respect to the runners. The bearings 7 are provided with oil cups 10 in orderthat the shaft may be maintained properly lubricated.

Mounted upon the saddles 9 is a pair of sheet metal cylindrical containers 11, the same being retained on the saddles by metallic straps 12. Each container is provided with a filling plug 12 so that they may be filled with chemical stock and replenished as necessary. V

In order that the contents of the containers may bedisch'arged it is necessary that they be tilted and in order to accomplish this a screw. shaft 13 is employed and has its upper end pivotally connected, as at 1 1, to one of the saddles 9. The shaft 13 is engaged in the vertically disposed guides 14 of the loop member 15 carried by the shaft 16, said shaft having its ends journaled in bearings 17 car-- ried by brackets 18 mounted upon the brackets 6. A hand wheel 19 is arranged between the guides 141 and is threaded on the shaft 13. Obviously, upon rotating the wheel 19, the screw shaft can be moved vertically to tilt the saddles and thus the containers-11.

A head 20 is mounted upon the tank 4 and supported thereon are casings 21, 22 and 23, in which valves 23 are rotatably mounted, said valves having stems 24, 25 and 26 respectively. These valvesare of the conventional turning plug type and have their stems fixed to the sides of channeled heads 26. The casings communicate with the interior of the tank4, there being hose sections 27 and 28 connecting the containers 11 with the casings 21 and 22 while a hose section 29 connects with the casing 23, the latterhose section being adapted to be connected with a source of water supply in order that water may be conducted therethrough into the tank 4 when needed.

To the valve stems 24 and 25 are pivoted one of the ends of the levers and 31, said levers being provided upon their outer ends with weights 32.

Mounted upon the head 20 are paired brackets which rotatably support the rods 3i and 35. These rods are each provided with lateral extensions 36 and 37, the extension 36 being disposed for engagement under the levers 30 and 31 to maintain the respective stems in position for holding the valves 23 in closed position. A third pair of brackets 38 is mounted on the head 20 and rotatably support the rod 39, which is also provided with lateral extensions .0 and tl, the extension 40 being disposed under the lever 42 which has its inner end fixed to the stem 26 of the valve 23 in the casing 21. This lever, like the lovers 30 and 31, is provided with a weight 43.

Movable in the tank 4 is a float ts having a stem 45 carried thereby which extends through the head 20 and has a collar 46 adjustable thereon. The extensions 37 of the rods 3% ant 35 are slidably and pivotally connected to the collar by a set screw 47 or any other suitable means may be used for this purpose. The extension 11 of the rod 39 is pivotally and slidably connected with the collar by a set screw 48.

An indicator is provided for regulating the proportion of flow of stock from the containers 11 and comprises a plate 19 having a sight opening 50 formed therein, said plate being supported by a bar 51 extending between the brackets G. Pivotally mounted upon the bar 51 is a head 52, arcuat-e in formation and adapted to move relative to the plate 49, said head having indicia thereon. The head carries an arm 53 to which is DlV- otallv connected the lower end of a. link at, the upper end of said link being pivotally connected to one of the saddles 9. Obviouslv, when the saddles are tiled, the link 54 will swing the head 52. In this manner, the tilting angle of the saddles can be conveniently observed through the sight opening.

The valve 23 in the casing 21 is so arranged that it will be closed when the valves in the casings 22 and 23 are open, and vice versa, in order that clear water may be introduced into the tank 4:, at which time the valves in the casings 21 and 22 are closed.

Briefly, the operation is as follows:

The containers 11 are filled with suitable stock and at which time the valves in the casings 21 and 22 are. closed, thus preventing flow of stock from the containers into the tank 4. Water is then conducted to the tank A through the hose 29 and as the level thereof rises, the float 14 will rise, whereupon the collar 46 will rock the rods 34-, 35 and 39 so that the extensions 36 and 40 thereof will be moved downwardly to free the levers 30, 31 and d2. As soon as the levers drop under the action of the respective weights, the valves in the casings 21 and 22 will open to permit the stock to flow into the tank, while the valve in the casing 23 will close, thus shutting oil" the supply of water to the tank. Previous to the admission of water to the tank at, the containers 11 are tilted through the medium of the screw shaft 13, so that the stock therein will flow through the hose connections 27 and 28 at predetermined levels governed by the degree to which the containers are tilted. This is readily governed upon observing the indicia upon the head 52 which is swung by the link 54. As soon as the stock in the containers reaches a level below the upper ends of the hose, flow thereof to the tank will stop, thus insuring a proper mixture of stock with the water in the tank. The mixture of water and stock from the tank 4 may be withdrawn through the hose 55 for use in a conventional form of spraying apparatus or ma chine. Since either of the extensions of the rods 34 and 35 may be released upon removing the set screw 47, one may be used so that the contents of one container may be supplied to the tank, when desired. In this manner, one of the containers may be filled with one kind of stock and the other with another, so that the stock may be mixed for use for various purposes. It is well known that cer tain kinds of plants and trees are treated with one kind of solution while others are treated with another kind.

By providing the heads 26 and fixing the same to the valve stems, the levers may swing in the stems when released and will engage the heads at one of their ends and subject the same to a jolting action. In this manner, should the valves stick from any cause, the jar incident to the levers contacting sharply with the heads will cause the same to turn.

The containers may be made from wood in case the stock is of a nature which might deteriorate sheet metal.

lVhat is claimed is:

1. A device of the class described comprising a mixing tank, stock containers associated with the tank, means for conducting water to the tank, a valve controlling admission of water to the tank, valves controlling the flow of stock from the containers to the tank, and a float in the tank for opening the valves and closing the valve when the water level rises in the tank.

2. A device of the class described comprising a mixing tank, stock containers associated therewith, means for conducting water to the tank, means for conducting stock from the containers to the tank, and float controlled means for alternately cutting oil the flow of stock and water to the tank.

liifi 3. A device of the class described comprising a pair of runners, brackets supported by the runners, a shaft rotatably supported by the brackets, saddles fixed to the shaft, stock containers carried by the saddles, a water re ceiving tank, hose connecting the containers and tank, and a screw shaft operable to tilt the saddles and thus the containers for regulating the flow of stock from the containers to the tank to be mixed with the water therein.

4. A device of the class described comprising a tank, stock containers associated therewith, means for supporting the containers above the plane of the tank, means for conducting stock from the containers to the tank, means for tilting the containers to regulate the flow of stock therefrom to the tank, and float controlled means for regulating the admission of water to the tank and regulating the flow of stock to the tank.

5. A device of the class described comprising a tank, stock containers associated therewith, valves controlling admission of stock from the containers into the tank, said valves having stems, heads fixed to the stems, levers pivotally connected with the stems, means for holding the levers elevated to retain the valves closed, and a float for releasing the lever holding means to cause the levers to contact with the heads to open the valves.

6. The combination with a mixing tank, a container holding stock to be supplied to the tank, means for tilting the container to eifect delivery of a predetermined amount of the stock, a valved connection between the container and tank, means for supplying water to the tank, a valve for controlling the flow of water, and a float actuated by the rise of Water in the tank to close the valve andeut off the water supply and simultaneously open the valve in the connection between the container and tank to admit of the required amount of stock flowing from the container into the tank.

7 The combination with a mixing tank, a plurality of containersholding stock tobe supplied to the tank, means for simultaneously tilting the containers to effect delivery of a given amount of stock therefrom, an independent valved connection between each of the containers and tank, means for supplying water to the tank, a valve for controlling the flow of water, and float operated means actuated by the rise of water in the container to simultaneously move the valves to cut off the supply of water and admit of the predetermined amount of stock flowing from the containers into the tank.

In testimony whereof I aflix my signature.

JOHN A. GIRD. [L. s.] 

